Resilient wheel.



L. L. DAUM. RESILIENT WHEEL.

APPLIUATION FILED mme. 1910.

Patented Dec. 2o, 1910` STATES raras-*r ort-iron.

LE\VIS L. IDAlVI, A(3F CANTON, OHIO.

rtnsriiinnr WHEEL.

To @ZZ whom, it may concern:

.Be it known that I, Lewis L; BAUM, la. citizen 'of the United States, residing at Canton. in the county of Stark and State of Ohio, have invented certain knew and useful improvements in Resilient .i/ Vheels, of which the following is aspecitleationtreterence being had to the accompanying draw'-` ings.

lily invention relates to improvements in resilient wheels or spring tires forvehicle wheels. n

rElie obyect of the invention is to provide a device ot this character which will be exceedingly strong, durable and eiiectivdand -a portion ot a resilient wheel constructed in accordance with my invention; Fig. 2 is a detail view partly in side elevation and vpartly in section showing the spring tire;

Fig. 3 is a cross sectional view.; Figfel isa r perspective view of one of the springs; and

Fig. 5 is a detail edge view ot another form' of spring.

My improved resilient wheel may have a body l ot any form and construction but as illustrated it is similar to the common cars riage or wagon wheel and has a woodenl telly 2 supported by radiating spokes 3 and` covered with a metal band or tire i.

My improved spring tire consists of an annular tread member .5 which surrounds the body l and is supported by an annular series of tangentially arranged, overlapping springs 6 oi steel or other suitable metal. Each of these springs is lpreferably constructed of a steel plate of substantially rectangular shape and curved' longitudinally., its thickest portion being at its center, and its end portionsbeing gradually tapered, as shown more clearly in Fig. 4. The inner end 7 of the spring is ourvedor rounded so as to have a. slight rocking movement on the band orV tire l.falto which latter it is loosely secured by a. screw, bolt or other fastening 8. The intermediate portion ot the spring is formed with an opening 9 and the tapered p Specication of Letters Patent.

Application filed March 9,

Patented Deo. 2th, i910.. i910. seriarno. 548,270.

outer or free end of the spring is formed ywith st notch l0 adapted to overlie the intermediate, portion of the nextadjacentv spring'so that bolts or similar fastenings l1 60 Amay be passed through the `tread member 5, the notch 10 in one spring, andthe opening or aperture 9 in the next adjacent spring, whereby these parts will vbe loosely yet eiiectively connected. tread member 5, whichl is preterablv,4 but not necessarily, constructed of `a double layer orn rubber belting` or analogous vmaterial, surrounds the annular series of The springs (i and is supported thereby and se- 7G 'cured to them by the bolts or analogous fastenings 1l. In' this manner. the tangentially arranged springs are held' in proper position in the annular'series and the treadmemberlor tire is also held in place by the bolts or fastenings 9. It will be understood that when the wheel runs along the ground the tangential springs will give suii'iciently to produce aresilient eilectsimilar to that'produced by a pneumatic tire, and the springs* will also rock slightly on their rounded inner ends. These springs may be made from a single piece of steel as shown in Fig. 4, or from two pieces as shown in Fig. 5.

In order to protectthe springs G and pre- 55 vent stones and' dirt from entering between them, a casing` 12 is provided, the same being constructed of canvas or other flexible material and being applied to thedevice be- 'fore the tread member or band 5 is arranged 90 on the annular series ot' springs. This covering or casing l2 extends over the springs and inwardly along` the sides of the 'telly or rim 2,- its edges being formed with hems 1? oto provide annular tubes in which are ar- 95.

ranged coutractible hoops or rings 14 adapted to draw the canvascovering 10 tightly around' the wheel close tothe sides of the telly. or rim and `thereby .prevent the entrance of dust, mud, stones. etc. between the. springs. The ends of the hoops llt are adjustably and detachably united by turn buckle sleeves l5 which engage right and lett hand screw threads on said ends of the hops. s

^ From the foregoing it will be seen that my improved resilient wheel or spring tire is exceedingly simple in construct-ion so that it may be produced at a small cost and will be strong and durable in use. l have found in practice that it 'produces the same resiliented'eot as the .ordinary rubber or pneumatie tire end is many times nioie durable than tbelettei end, of eouise, free from the annoyance oil" pnnetuies end other disadvantages eoninion to fill pneumatic tives.

iilaving tinus described the inveiitioii,tvbet is claimed is:

A Wheel of the character deseiibed oomprising a Wheel body consisting of a hub, spokes, ci Wooden telly, and en annular metal bend covering the felly and formed et in teivels with openings7 an annule-1* tread member of ilegible material, an annular' series of tangentially eranged overlapping springs, eeeli of the latter having e. thick central portion, and tapered ends, 'seid springs having their intermediate portions formed with openings, their innel1 ends curved longitudinally and engaged with the annuler bend, for rocking movement, and lso formed with openings to register with the openings in seid band, and the outer tapered ends of seid springs being arranged in Wheel body.

overlapping relation, and formed with slots to register with the openings in the intermediate portions of the springs, a iexlble easing arranged between the tread member and l the overlapping outer ends of the springs, fastenings passing through the tread meinbe, the easing, the slots in the outer ends of the springs, and the openings in the intermediate portions of the same, fastenngs passed through the registering openings in the inner ends of the spiings, and said band, and int-o the telly ot the Wheel body, herne on tli'e ed es of said flexible easing, and oontreetible loops arranged in seid heme, to drew the easing close to the telly of the 1n testimony whereof I hereunto ao; my

lsignatuie in the presence of two Witnesses.

i LEWVIS L. BAUM. Vvfitnesses:

' S. F. BOWMAN,

LeveeL Riemen. 

